---
product_id: 371729909
title: "Seiko Prospex Alpinist Limited Model SPB121J1 Made in Japan, Modern"
brand: "seiko"
price: "€ 1035.45"
currency: EUR
in_stock: true
reviews_count: 7
url: https://www.desertcart.ie/products/371729909-seiko-prospex-alpinist-limited-model-spb121j1-made-in-japan-modern
store_origin: IE
region: Ireland
---

# 200m water resistance for serious adventure Screw-down crown for water-tight security Caliber 6R35 automatic movement, 70-hour power reserve Seiko Prospex Alpinist Limited Model SPB121J1 Made in Japan, Modern

**Brand:** seiko
**Price:** € 1035.45
**Availability:** ✅ In Stock

## Summary

> ⛰️ Elevate your wrist game with the iconic Seiko Alpinist—where precision meets prestige.

## Quick Answers

- **What is this?** Seiko Prospex Alpinist Limited Model SPB121J1 Made in Japan, Modern by seiko
- **How much does it cost?** € 1035.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/371729909-seiko-prospex-alpinist-limited-model-spb121j1-made-in-japan-modern)

## Best For

- seiko enthusiasts

## Why This Product

- Trusted seiko brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Meets Adventure:** Caliber 6R35 automatic movement delivers reliable timekeeping with a 70-hour power reserve—never miss a beat on your next expedition.
- • **Built to Brave the Elements:** Screw-down crown and 200m water resistance ensure your watch stays secure and functional whether hiking, diving, or exploring urban jungles.
- • **Limited Edition Exclusivity:** Own a piece of horological history with this rare Made in Japan Alpinist model—stand out with a watch that’s as unique as your journey.
- • **Sapphire Crystal Durability:** Scratch-resistant sapphire glass protects the minimalist green dial, combining elegance with everyday resilience.
- • **Timeless Japanese Craftsmanship:** Stainless steel case paired with a rich brown leather strap offers a sophisticated yet rugged look that transitions seamlessly from boardroom to backcountry.

## Overview

The Seiko Prospex Alpinist Limited Model SPB121J1 is a Japanese-made automatic watch featuring the robust Caliber 6R35 movement with a 70-hour power reserve, a screw-down crown for enhanced water resistance up to 200 meters, and a durable sapphire crystal. Its 39.5mm stainless steel case and brown leather strap blend classic style with rugged functionality, making it a coveted limited edition for discerning professionals and adventure enthusiasts alike.

## Description

eiko Prospex challenges every limit, with a collection of timepieces for sports lovers and adventure seekers whether in the water, in the sky or on land. Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative technology has changed global standards. We are constantly striving to bring ever greater reliability and safety to both professional and recreational divers.

Review: Super classy Seiko - One of the finest Seiko watches. Very classy
Review: Average - The green is not rich and tends more towards a dull black. The numerical and hour marks are not pronounced enough for clarity. Sapphire glass is not clear enough either. Average for me, though there is a cult following for this watch.

## Features

- Screw-down Crown
- Limited Edition
- Caliber No : 6R35
- Made in japan

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B082F6MS8T |
| ASIN  | B082F6MS8T |
| Age Range Description | Adult |
| Band Color | Brown |
| Band Material Type | Leather |
| Band Width | 20 Millimeters |
| Bands | 1 |
| Best Sellers Rank | #33,023 in Fashion ( See Top 100 in Fashion ) #871 in Men's Wrist Watches |
| Brand Name | Seiko |
| Case Diameter | 39.5 Millimeters |
| Case Material Type | Stainless Steel |
| Case Thickness | 13.2 |
| Character | no subject character |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | Sapphire |
| Customer Reviews | 4.3 4.3 out of 5 stars (309) |
| Customer reviews | 4.3 4.3 out of 5 stars (309) |
| Date First Available  | 17 December 2019 |
| Department  | mens |
| Dial Color | Green |
| Display | Analog |
| Embellishment Feature | Crystal |
| Face Style | Minimalist |
| Global Trade Identification Number | 04954628453532 |
| Included Components | Watch, User Manual |
| Item Type Name | Automatic Watch |
| Item Weight | 0.5 Kilograms |
| Item model number  | SPB121J1 |
| Manufacturer | SEIKO |
| Manufacturer  | SEIKO |
| Manufacturer Warranty Description | 3 YEARS SEIKO INTERNATIONAL WARRANTY |
| Model Name | Alpinist Limited Modello |
| Model Number | SPB121J1 |
| Package Dimensions  | 30.9 x 9.1 x 6.4 cm; 500 g |
| Pattern | Solid |
| Power Source | Automatic |
| Series Number | 1 |
| Shape | Round |
| Sport Type | Walking |
| Strap Type | Two Piece Strap |
| Style Name | Japanese |
| Watch Movement Type | Automatic |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Water Resistant |

## Images

![Seiko Prospex Alpinist Limited Model SPB121J1 Made in Japan, Modern - Image 1](https://m.media-amazon.com/images/I/61T0I5+UZaL.jpg)
![Seiko Prospex Alpinist Limited Model SPB121J1 Made in Japan, Modern - Image 2](https://m.media-amazon.com/images/I/71ENEWcKfgL.jpg)
![Seiko Prospex Alpinist Limited Model SPB121J1 Made in Japan, Modern - Image 3](https://m.media-amazon.com/images/I/61PMEEiQKOL.jpg)
![Seiko Prospex Alpinist Limited Model SPB121J1 Made in Japan, Modern - Image 4](https://m.media-amazon.com/images/I/61x4KRrQm2L.jpg)
![Seiko Prospex Alpinist Limited Model SPB121J1 Made in Japan, Modern - Image 5](https://m.media-amazon.com/images/I/61H4YdeXa7L.jpg)

## Questions & Answers

**Q: What makes this model limited compare to model spb121j1?**
A: This is not a limited edition.  SPB121JI is an international market release by Seiko, and replaced the popular SARB017. This model  SADC091 is the same model produced for the Japanese market. Maybe that's why they called it a Limited Edition, the model number is exclusive to Japan, not the watch.

**Q: The description says it’s a quartz watch the dial say automatic, love the green dial but I am confused 😐**
A: Hello,

This model is 100% automatic, mechanical movement.

Best regards,

GTJ

**Q: I have small wrists 6 1/4 inch would this  adjust enough to fit me?**
A: Hello,

The OEM strap will not fit your wrist. You'll have to find a shorter strap to use if you like this watch.

Best regards,
GTJ

**Q: Does it have sapphire crystal?**
A: Has a sapphire Chrystal, 6R35 movement and screw down crown

## Customer Reviews

### ⭐⭐⭐⭐⭐ Super classy Seiko
*by B***Y on 29 March 2024*

One of the finest Seiko watches. Very classy

### ⭐⭐⭐ Average
*by N***! on 1 September 2025*

The green is not rich and tends more towards a dull black. The numerical and hour marks are not pronounced enough for clarity. Sapphire glass is not clear enough either. Average for me, though there is a cult following for this watch.

### ⭐⭐⭐⭐⭐ Review
*by T***P on 10 March 2025*

Fast shippment and an incredible watch that worths the price.

## Frequently Bought Together

- Seiko Prospex Alpinist Limited Model SBDC091 Made in Japan
- BARTON Elite Silicone Watch Bands - Quick Release - Choose Strap Color & Buckle Color (Stainless Steel, Black PVD or Gunmetal Grey) - 18mm, 20mm, 22mm & 24mm Watch Straps
- Barton Quick Release - Top Grain Leather Watch Band Strap - Choice of Width - 16mm, 18mm, 19mm, 20mm, 21mm 22mm, 23mm or 24mm

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-26*